Question: What is the nominal GDP of La Rioja in the year 2015?
Paraphrase: What was the Gross Domestic Product of La Rioja in 2015?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q5727 p:P2131 ?s . ?s ps:P2131 ?obj . ?s pq:P585 ?x filter(contains(YEAR(?x),'2015')) }